edulab.dk

📜 Historical scan 2026-08-17 14:09:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

edulab.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 7 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.63.7 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by edulab-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 227ms

Nameserver	IP addresses	PTR	ASN / ISP
cortney.ns.cloudflare.com	108.162.192.87 172.64.32.87 173.245.58.87 2606:4700:50::adf5:3a57 2803:f800:50::6ca2:c057 2a06:98c1:50::ac40:2057	cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
eric.ns.cloudflare.com	108.162.193.112 172.64.33.112 173.245.59.112 2606:4700:58::adf5:3b70 2803:f800:50::6ca2:c170 2a06:98c1:50::ac40:2170	eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 234ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.63.7	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.168.247	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 240ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	edulab-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca09::9 52.101.68.0 52.101.68.18 52.101.68.8 52.101.73.24	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 236ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:a8f7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:3f07	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 208ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.63.7,172.67.168.247 ech=AEX+DQBBjgAgACAGd+wmoXQPMjzXpkwY+ze8vrvyh3X6bHrF0BXN0GD2OwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:a8f7,2606:4700:3036::6815:3f07

📝 TXT Records#

3 records 467ms

TXT Record
google-site-verification=jk9dNgCwMVbx21gOJSPP0MonJmc5Ka9bHvvwMvBFg6o
MS=ms75731846
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (edulab.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.edulab.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:a1d4951bf4fb930@rep.dmarcanalyzer.com; ruf=mailto:a1d4951bf4fb930@for.dmarcanalyzer.com; fo=1;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 13:45:25

www	104.21.63.7 172.67.168.247 2606:4700:3035::ac43:a8f7 2606:4700:3036::6815:3f07 (AS13335) (address records, no CNAME)
www vs bare domain	Same network edulab.dk: 104.21.63.7 172.67.168.247 2606:4700:3035::ac43:a8f7 2606:4700:3036::6815:3f07 (AS13335) www.edulab.dk: 104.21.63.7 172.67.168.247 2606:4700:3035::ac43:a8f7 2606:4700:3036::6815:3f07 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u18921011.wl012.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u18921011.wl012.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-edulab-dk._domainkey.egmont.e-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-edulab-dk._domainkey.egmont.e-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.edulab.dk	HhGt3tQIJdtSMcFwzIVBq8LQ9-I1jU1buvYqKI2MFm8
TXT	_acme-challenge.edulab.dk	oYfGx9hcW6iqRH-9s4t5VP66qB6CYklqqe9CRawgEQA

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

370ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2412360738
Primary NS (MNAME)	cortney.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 14:24:49

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-02-07
Expires	2028-02-29 (499d)

🔗 Same registrant#

152 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
0klassefaget.dk	Eurodns S.A
1094.dk	Punktum dk A/S (direct)
5emner.dk	Punktum dk A/S (direct)
5nyeemner.dk	Punktum dk A/S (direct)
ad-dev.dk	Punktum dk A/S (direct)
ad-prod.dk	Punktum dk A/S (direct)
ad-staging.dk	Punktum dk A/S (direct)
ad-test.dk	Punktum dk A/S (direct)
afgangsprøver.dk	Eurodns S.A
aigo.dk	Punktum dk A/S (direct)
alinea-web.dk	Punktum dk A/S (direct)
alinea.dk	Punktum dk A/S (direct)
alineadigital.dk	Punktum dk A/S (direct)
athene.dk	Punktum dk A/S (direct)
bingoweb.dk	Punktum dk A/S (direct)
biologifocus.dk	Punktum dk A/S (direct)
blivklog.dk	Punktum dk A/S (direct)
bog.dk	Punktum dk A/S (direct)
bookguide.dk	Punktum dk A/S (direct)
bornsliv.dk	Punktum dk A/S (direct)
camptysk.dk	Punktum dk A/S (direct)
carlsen.dk	Punktum dk A/S (direct)
classteam.dk	Punktum dk A/S (direct)
clio.dk	Eurodns S.A
cliocloud.dk	Eurodns S.A
clioevalueringsopgaver.dk	Eurodns S.A
clionoc.dk	Eurodns S.A
cliopulten.dk	Eurodns S.A
clioskole.dk	Eurodns S.A
clioskyen.dk	Eurodns S.A
cliotræning.dk	Eurodns S.A
dansk-skolen.dk	Eurodns S.A
danskfessor.dk	Punktum dk A/S (direct)
dansklandskabet.dk	Punktum dk A/S (direct)
danskskolen.dk	Eurodns S.A
dansktime.dk	Eurodns S.A
danskunivers.dk	Punktum dk A/S (direct)
denførstelæsning.dk	Punktum dk A/S (direct)
digitalfaget.dk	Eurodns S.A
dmiklassematematik.dk	Punktum dk A/S (direct)
dmimatematik.dk	Punktum dk A/S (direct)
dmmatematik.dk	Punktum dk A/S (direct)
easyreaders.dk	Punktum dk A/S (direct)
edspace.dk	Punktum dk A/S (direct)
elevlab.dk	Punktum dk A/S (direct)
engelskfaget.dk	Eurodns S.A
engelskfessor.dk	Punktum dk A/S (direct)
engelskunivers.dk	Punktum dk A/S (direct)
eskolebog.dk	Punktum dk A/S (direct)
faerdighedsproeven.dk	Punktum dk A/S (direct)
familiefessor.dk	Punktum dk A/S (direct)
fesor.dk	Punktum dk A/S (direct)
fessor.dk	Punktum dk A/S (direct)
fessordysten.dk	Punktum dk A/S (direct)
fessorsaktiviteter.dk	Punktum dk A/S (direct)
fessorsfamilie.dk	Punktum dk A/S (direct)
fessorskurser.dk	Punktum dk A/S (direct)
fessorstalkuffert.dk	Punktum dk A/S (direct)
filmabc.dk	Punktum dk A/S (direct)
fleksbog.dk	Punktum dk A/S (direct)
fleksbogen.dk	Punktum dk A/S (direct)
flexbog.dk	Punktum dk A/S (direct)
forfatter.dk	Punktum dk A/S (direct)
forlagetturbo.dk	Punktum dk A/S (direct)
formatnet.dk	Punktum dk A/S (direct)
franskfessor.dk	Punktum dk A/S (direct)
fysik-kemi-timen.dk	Eurodns S.A
fysik-kemifokus.dk	Punktum dk A/S (direct)
fysiktalent.dk	Punktum dk A/S (direct)
gekko-engelsk.dk	Punktum dk A/S (direct)
gekko-fransk.dk	Punktum dk A/S (direct)
gekko-tysk.dk	Punktum dk A/S (direct)
gekkotysk.dk	Punktum dk A/S (direct)
gymnasie-portalen.dk	Punktum dk A/S (direct)
haandvaerkdesignfaget.dk	Eurodns S.A
historieunivers.dk	Punktum dk A/S (direct)
håndværkdesignfaget.dk	Eurodns S.A
i-skolebogen.dk	Punktum dk A/S (direct)
innovationfaget.dk	Eurodns S.A
iskolebog.dk	Punktum dk A/S (direct)
isprog.dk	Punktum dk A/S (direct)
istav.dk	Punktum dk A/S (direct)
iwbunivers.dk	Punktum dk A/S (direct)
kalenderfessor.dk	Punktum dk A/S (direct)
klimafessor.dk	Punktum dk A/S (direct)
klogpaanaturfag.dk	Eurodns S.A
komma.dk	Punktum dk A/S (direct)
kristendomskundskab.dk	Eurodns S.A
lindhardt-og-ringhof.dk	Punktum dk A/S (direct)
lindhardtringhof.dk	Punktum dk A/S (direct)
lindhardtringhofbusiness.dk	Punktum dk A/S (direct)
lindhart-ringhof.dk	Punktum dk A/S (direct)
lindhartringhof.dk	Punktum dk A/S (direct)
logrweb.dk	Punktum dk A/S (direct)
lrdigital.dk	ONE.COM A/S
lrlive.dk	Punktum dk A/S (direct)
lru.dk	Punktum dk A/S (direct)
lruddannelse.dk	Punktum dk A/S (direct)
lrurag.dk	Punktum dk A/S (direct)
matematikdm.dk	Punktum dk A/S (direct)

Showing 100 of 152.

📋 WHOIS#

⏱️ Lookup Timing#

227ms

234ms

240ms

AAAA

236ms

TXT

467ms

CAA

214ms

HTTPS

208ms

TLSA

1163ms

SOA

0ms

MTA-STS

255ms

DNSSEC

370ms

SRV

324ms

Total

3618ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 13:45:25	2529ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 18:00:14	1310ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 01:38:50	1584ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-21 09:33:51	1136ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 16:58:00	1591ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 16:27:18	2061ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-14 13:02:19	2728ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-05 16:23:16	2105ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 04:04:45	785ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 18:02:36	1442ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 01:36:51	2206ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 22:39:47	4388ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-17 14:09:57 shown	3618ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-09 09:00:33	2259ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 14:30:37	1347ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-29 14:23:06	1483ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 20:26:43	2805ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 10:28:53	1126ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 15:16:34	627ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 05:55:51	682ms	2 NS 2 A 1 MX	🔓 Insecure